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authorPaul Vinciguerra <pvinci@vinciconsulting.com>2020-01-28 14:47:17 -0500
committerNeale Ranns <nranns@cisco.com>2020-12-28 09:45:41 +0000
commit5481ad4eb7fbbf32ff30450525c935de63ffcf0f (patch)
tree0d371afdf27b033511f83bad6249e17ec52688c6 /src/vlib/unix
parentf6472e0f7b220226f2c2d4b7e05de4ebe7f36663 (diff)
vlib: add missing file template descriptions
Add descriptions to clib_file_t template structures so that sockets can be identified via the 'show unix file' cli command. Type: fix Change-Id: Ibf82d55aa6c7b1126bd252b76d0dc8b7076f5046 Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
Diffstat (limited to 'src/vlib/unix')
-rw-r--r--src/vlib/unix/mc_socket.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/src/vlib/unix/mc_socket.c b/src/vlib/unix/mc_socket.c
index 86ee4361900..9800b1e744c 100644
--- a/src/vlib/unix/mc_socket.c
+++ b/src/vlib/unix/mc_socket.c
@@ -95,7 +95,7 @@ sendmsg_helper (mc_socket_main_t * msm,
n_bytes = append_buffer_index_to_iovec (vm, buffer_index, &msm->iovecs);
ASSERT (n_bytes <= msm->mc_main.transport.max_packet_size);
if (n_bytes > msm->mc_main.transport.max_packet_size)
- clib_error ("sending packet larger than interace MTU %d bytes", n_bytes);
+ clib_error ("sending packet larger than interface MTU %d bytes", n_bytes);
h.msg_iov = msm->iovecs;
h.msg_iovlen = vec_len (msm->iovecs);
@@ -616,6 +616,7 @@ catchup_listen_read_ready (clib_file_t * uf)
template.write_function = catchup_server_write_ready;
template.error_function = catchup_socket_error_ready;
template.file_descriptor = c->socket;
+ template.description = format (0, "multicast catchup socket");
template.private_data = pointer_to_uword (msm);
c->clib_file_index = clib_file_add (&file_main, &template);
hash_set (msm->catchup_index_by_file_descriptor, c->socket,
@@ -786,6 +787,7 @@ socket_setup (mc_socket_main_t * msm)
template.file_descriptor =
msm->multicast_sockets[MC_TRANSPORT_USER_REQUEST_TO_RELAY].socket;
template.private_data = (uword) msm;
+ template.description = format (0, "multicast to_relay socket");
clib_file_add (&file_main, &template);
/* epoll setup for multicast from_relay socket */
@@ -793,24 +795,28 @@ socket_setup (mc_socket_main_t * msm)
template.file_descriptor =
msm->multicast_sockets[MC_TRANSPORT_USER_REQUEST_FROM_RELAY].socket;
template.private_data = (uword) msm;
+ template.description = format (0, "multicast from_relay socket");
clib_file_add (&file_main, &template);
template.read_function = join_socket_read_ready;
template.file_descriptor =
msm->multicast_sockets[MC_TRANSPORT_JOIN].socket;
template.private_data = (uword) msm;
+ template.description = format (0, "multicast join socket");
clib_file_add (&file_main, &template);
/* epoll setup for ack rx socket */
template.read_function = ack_socket_read_ready;
template.file_descriptor = msm->ack_socket;
template.private_data = (uword) msm;
+ template.description = format (0, "multicast ack rx socket");
clib_file_add (&file_main, &template);
/* epoll setup for TCP catchup server */
template.read_function = catchup_listen_read_ready;
template.file_descriptor = msm->catchup_server_socket;
template.private_data = (uword) msm;
+ template.description = format (0, "multicast tcp catchup socket");
clib_file_add (&file_main, &template);
}
@@ -903,6 +909,7 @@ catchup_request_fun (void *transport_main,
template.error_function = catchup_socket_error_ready;
template.file_descriptor = c->socket;
template.private_data = (uword) msm;
+ template.description = format (0, "multicast socket");
c->clib_file_index = clib_file_add (um, &template);
hash_set (msm->catchup_index_by_file_descriptor, c->socket,
n299'>299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699
#!/usr/bin/env python
""" Vpp VCL tests """

import unittest
import os
import subprocess
import signal
from framework import VppTestCase, VppTestRunner, running_extended_tests, \
    Worker
from vpp_ip_route import VppIpTable, VppIpRoute, VppRoutePath, DpoProto


class VCLAppWorker(Worker):
    """ VCL Test Application Worker """

    def __init__(self, build_dir, appname, args, logger, env={}):
        vcl_lib_dir = "%s/vpp/lib" % build_dir
        if "iperf" in appname:
            app = appname
            env.update({'LD_PRELOAD':
                        "%s/libvcl_ldpreload.so" % vcl_lib_dir})
        elif "sock" in appname:
            app = "%s/vpp/bin/%s" % (build_dir, appname)
            env.update({'LD_PRELOAD':
                        "%s/libvcl_ldpreload.so" % vcl_lib_dir})
        else:
            app = "%s/vpp/bin/%s" % (build_dir, appname)
        self.args = [app] + args
        super(VCLAppWorker, self).__init__(self.args, logger, env)


class VCLTestCase(VppTestCase):
    """ VCL Test Class """

    def __init__(self, methodName):
        var = "VPP_BUILD_DIR"
        self.build_dir = os.getenv(var, None)
        if self.build_dir is None:
            raise Exception("Environment variable `%s' not set" % var)
        self.vppDebug = 'vpp_debug' in self.build_dir
        self.server_addr = "127.0.0.1"
        self.server_port = "22000"
        self.server_args = [self.server_port]
        self.server_ipv6_addr = "::1"
        self.server_ipv6_args = ["-6", self.server_port]
        self.timeout = 20
        self.echo_phrase = "Hello, world! Jenny is a friend of mine."
        self.pre_test_sleep = 0.3
        self.post_test_sleep = 0.2

        if os.path.isfile("/tmp/ldp_server_af_unix_socket"):
            os.remove("/tmp/ldp_server_af_unix_socket")

        super(VCLTestCase, self).__init__(methodName)

    def cut_thru_setup(self):
        self.vapi.session_enable_disable(is_enabled=1)

    def cut_thru_tear_down(self):
        self.vapi.session_enable_disable(is_enabled=0)

    def cut_thru_test(self, server_app, server_args, client_app, client_args):
        self.env = {'VCL_API_PREFIX': self.shm_prefix,
                    'VCL_APP_SCOPE_LOCAL': "true"}

        worker_server = VCLAppWorker(self.build_dir, server_app, server_args,
                                     self.logger, self.env)
        worker_server.start()
        self.sleep(self.pre_test_sleep)
        worker_client = VCLAppWorker(self.build_dir, client_app, client_args,
                                     self.logger, self.env)
        worker_client.start()
        worker_client.join(self.timeout)
        try:
            self.validateResults(worker_client, worker_server, self.timeout)
        except Exception as error:
            self.fail("Failed with %s" % error)
        self.sleep(self.post_test_sleep)

    def thru_host_stack_setup(self):
        self.vapi.session_enable_disable(is_enabled=1)
        self.create_loopback_interfaces(2)

        table_id = 1

        for i in self.lo_interfaces:
            i.admin_up()

            if table_id != 0:
                tbl = VppIpTable(self, table_id)
                tbl.add_vpp_config()

            i.set_table_ip4(table_id)
            i.config_ip4()
            table_id += 1

        # Configure namespaces
        self.vapi.app_namespace_add(namespace_id="1", secret=1234,
                                    sw_if_index=self.loop0.sw_if_index)
        self.vapi.app_namespace_add(namespace_id="2", secret=5678,
                                    sw_if_index=self.loop1.sw_if_index)

        # Add inter-table routes
        ip_t01 = VppIpRoute(self, self.loop1.local_ip4, 32,
                            [VppRoutePath("0.0.0.0",
                                          0xffffffff,
                                          nh_table_id=2)], table_id=1)
        ip_t10 = VppIpRoute(self, self.loop0.local_ip4, 32,
                            [VppRoutePath("0.0.0.0",
                                          0xffffffff,
                                          nh_table_id=1)], table_id=2)
        ip_t01.add_vpp_config()
        ip_t10.add_vpp_config()
        self.logger.debug(self.vapi.cli("show ip fib"))

    def thru_host_stack_tear_down(self):
        for i in self.lo_interfaces:
            i.unconfig_ip4()
            i.set_table_ip4(0)
            i.admin_down()

        self.vapi.session_enable_disable(is_enabled=0)

    def thru_host_stack_ipv6_setup(self):
        self.vapi.session_enable_disable(is_enabled=1)
        self.create_loopback_interfaces(2)

        table_id = 1

        for i in self.lo_interfaces:
            i.admin_up()

            tbl = VppIpTable(self, table_id, is_ip6=1)
            tbl.add_vpp_config()

            i.set_table_ip6(table_id)
            i.config_ip6()
            table_id += 1

        # Configure namespaces
        self.vapi.app_namespace_add(namespace_id="1", secret=1234,
                                    sw_if_index=self.loop0.sw_if_index)
        self.vapi.app_namespace_add(namespace_id="2", secret=5678,
                                    sw_if_index=self.loop1.sw_if_index)

        # Add inter-table routes
        ip_t01 = VppIpRoute(self, self.loop1.local_ip6, 128,
                            [VppRoutePath("::0", 0xffffffff,
                                          nh_table_id=2,
                                          proto=DpoProto.DPO_PROTO_IP6)],
                            table_id=1, is_ip6=1)
        ip_t10 = VppIpRoute(self, self.loop0.local_ip6, 128,
                            [VppRoutePath("::0", 0xffffffff,
                                          nh_table_id=1,
                                          proto=DpoProto.DPO_PROTO_IP6)],
                            table_id=2, is_ip6=1)
        ip_t01.add_vpp_config()
        ip_t10.add_vpp_config()
        self.logger.debug(self.vapi.cli("show interface addr"))
        self.logger.debug(self.vapi.cli("show ip6 fib"))

    def thru_host_stack_ipv6_tear_down(self):
        for i in self.lo_interfaces:
            i.unconfig_ip6()
            i.set_table_ip6(0)
            i.admin_down()

        self.vapi.session_enable_disable(is_enabled=0)

    def thru_host_stack_test(self, server_app, server_args,
                             client_app, client_args):
        self.env = {'VCL_API_PREFIX': self.shm_prefix,
                    'VCL_APP_SCOPE_GLOBAL': "true",
                    'VCL_APP_NAMESPACE_ID': "1",
                    'VCL_APP_NAMESPACE_SECRET': "1234"}

        worker_server = VCLAppWorker(self.build_dir, server_app, server_args,
                                     self.logger, self.env)
        worker_server.start()
        self.sleep(self.pre_test_sleep)

        self.env.update({'VCL_APP_NAMESPACE_ID': "2",
                         'VCL_APP_NAMESPACE_SECRET': "5678"})
        worker_client = VCLAppWorker(self.build_dir, client_app, client_args,
                                     self.logger, self.env)
        worker_client.start()
        worker_client.join(self.timeout)

        try:
            self.validateResults(worker_client, worker_server, self.timeout)
        except Exception as error:
            self.fail("Failed with %s" % error)
        self.sleep(self.post_test_sleep)

    def validateResults(self, worker_client, worker_server, timeout):
        if os.path.isdir('/proc/{}'.format(worker_server.process.pid)):
            self.logger.info("Killing server worker process (pid %d)" %
                             worker_server.process.pid)
            os.killpg(os.getpgid(worker_server.process.pid), signal.SIGKILL)
            worker_server.join()
        self.logger.info("Client worker result is `%s'" % worker_client.result)
        error = False
        if worker_client.result is None:
            try:
                error = True
                self.logger.error(
                    "Timeout: %ss! Killing client worker process (pid %d)" %
                    (timeout, worker_client.process.pid))
                os.killpg(os.getpgid(worker_client.process.pid),
                          signal.SIGKILL)
                worker_client.join()
            except:
                self.logger.debug(
                    "Couldn't kill client worker process")
                raise
        if error:
            raise Exception(
                "Timeout! Client worker did not finish in %ss" % timeout)
        self.assert_equal(worker_client.result, 0, "Binary test return code")


class LDPCutThruTestCase(VCLTestCase):
    """ LDP Cut Thru Tests """

    def setUp(self):
        super(LDPCutThruTestCase, self).setUp()

        self.cut_thru_setup()
        self.client_echo_test_args = ["-E", self.echo_phrase, "-X",
                                      self.server_addr, self.server_port]
        self.client_iperf3_timeout = 20
        self.client_iperf3_args = ["-V4d", "-t 2", "-c", self.server_addr]
        self.server_iperf3_args = ["-V4d", "-s"]
        self.client_uni_dir_nsock_timeout = 20
        self.client_uni_dir_nsock_test_args = ["-N", "1000", "-U", "-X",
                                               "-I", "2",
                                               self.server_addr,
                                               self.server_port]
        self.client_bi_dir_nsock_timeout = 20
        self.client_bi_dir_nsock_test_args = ["-N", "1000", "-B", "-X",
                                              "-I", "2",
                                              self.server_addr,
                                              self.server_port]

    def tearDown(self):
        self.cut_thru_tear_down()

        super(LDPCutThruTestCase, self).tearDown()

    @unittest.skipUnless(running_extended_tests, "part of extended tests")
    def test_ldp_cut_thru_echo(self):
        """ run LDP cut thru echo test """

        self.cut_thru_test("sock_test_server", self.server_args,
                           "sock_test_client", self.client_echo_test_args)

    def test_ldp_cut_thru_iperf3(self):
        """ run LDP cut thru iperf3 test """

        try:
            subprocess.check_output(['iperf3', '-v'])
        except subprocess.CalledProcessError:
            self.logger.error("WARNING: 'iperf3' is not installed,")
            self.logger.error("         'test_ldp_cut_thru_iperf3' not run!")
            return

        self.timeout = self.client_iperf3_timeout
        self.cut_thru_test("iperf3", self.server_iperf3_args,
                           "iperf3", self.client_iperf3_args)

    @unittest.skipUnless(running_extended_tests, "part of extended tests")
    def test_ldp_cut_thru_uni_dir_nsock(self):
        """ run LDP cut thru uni-directional (multiple sockets) test """

        self.timeout = self.client_uni_dir_nsock_timeout
        self.cut_thru_test("sock_test_server", self.server_args,
                           "sock_test_client",
                           self.client_uni_dir_nsock_test_args)

    @unittest.skipUnless(running_extended_tests, "part of extended tests")
    def test_ldp_cut_thru_bi_dir_nsock(self):
        """ run LDP cut thru bi-directional (multiple sockets) test """

        self.timeout = self.client_bi_dir_nsock_timeout
        self.cut_thru_test("sock_test_server", self.server_args,
                           "sock_test_client",
                           self.client_bi_dir_nsock_test_args)


class VCLCutThruTestCase(VCLTestCase):
    """ VCL Cut Thru Tests """

    def setUp(self):
        super(VCLCutThruTestCase, self).setUp()

        self.cut_thru_setup()
        self.client_echo_test_args = ["-E", self.echo_phrase, "-X",
                                      self.server_addr, self.server_port]

        self.client_uni_dir_nsock_timeout = 20
        self.client_uni_dir_nsock_test_args = ["-N", "1000", "-U", "-X",
                                               "-I", "2",
                                               self.server_addr,
                                               self.server_port]
        self.client_bi_dir_nsock_timeout = 20
        self.client_bi_dir_nsock_test_args = ["-N", "1000", "-B", "-X",
                                              "-I", "2",
                                              self.server_addr,
                                              self.server_port]

    def tearDown(self):
        self.cut_thru_tear_down()

        super(VCLCutThruTestCase, self).tearDown()

    def test_vcl_cut_thru_echo(self):
        """ run VCL cut thru echo test """

        self.cut_thru_test("vcl_test_server", self.server_args,
                           "vcl_test_client", self.client_echo_test_args)

    def test_vcl_cut_thru_uni_dir_nsock(self):
        """ run VCL cut thru uni-directional (multiple sockets) test """

        self.timeout = self.client_uni_dir_nsock_timeout
        self.cut_thru_test("vcl_test_server", self.server_args,
                           "vcl_test_client",
                           self.client_uni_dir_nsock_test_args)

    def test_vcl_cut_thru_bi_dir_nsock(self):
        """ run VCL cut thru bi-directional (multiple sockets) test """

        self.timeout = self.client_bi_dir_nsock_timeout
        self.cut_thru_test("vcl_test_server", self.server_args,
                           "vcl_test_client",
                           self.client_bi_dir_nsock_test_args)


class LDPThruHostStackEcho(VCLTestCase):
    """ LDP Thru Host Stack Echo """

    def setUp(self):
        super(LDPThruHostStackEcho, self).setUp()

        self.thru_host_stack_setup()
        self.client_echo_test_args = ["-E", self.echo_phrase, "-X",
                                      self.loop0.local_ip4,
                                      self.server_port]

    def tearDown(self):
        self.thru_host_stack_tear_down()
        super(LDPThruHostStackEcho, self).tearDown()

    def test_ldp_thru_host_stack_echo(self):
        """ run LDP thru host stack echo test """

        self.thru_host_stack_test("sock_test_server", self.server_args,
                                  "sock_test_client",
                                  self.client_echo_test_args)


class VCLThruHostStackEcho(VCLTestCase):
    """ VCL Thru Host Stack Echo """

    def setUp(self):
        super(VCLThruHostStackEcho, self).setUp()

        self.thru_host_stack_setup()
        self.client_bi_dir_nsock_timeout = 20
        self.client_bi_dir_nsock_test_args = ["-N", "1000", "-B", "-X",
                                              "-I", "2",
                                              self.loop0.local_ip4,
                                              self.server_port]
        self.client_echo_test_args = ["-E", self.echo_phrase, "-X",
                                      self.loop0.local_ip4,
                                      self.server_port]

    def tearDown(self):
        self.logger.debug(self.vapi.cli("show app server"))
        self.logger.debug(self.vapi.cli("show session verbose"))
        self.thru_host_stack_tear_down()
        super(VCLThruHostStackEcho, self).tearDown()


class VCLThruHostStackBidirNsock(VCLTestCase):
    """ VCL Thru Host Stack Bidir Nsock """

    def setUp(self):
        super(VCLThruHostStackBidirNsock, self).setUp()

        self.thru_host_stack_setup()
        self.client_bi_dir_nsock_timeout = 20
        self.client_bi_dir_nsock_test_args = ["-N", "1000", "-B", "-X",
                                              "-I", "2",
                                              self.loop0.local_ip4,
                                              self.server_port]
        self.client_echo_test_args = ["-E", self.echo_phrase, "-X",
                                      self.loop0.local_ip4,
                                      self.server_port]

    def tearDown(self):
        self.thru_host_stack_tear_down()
        super(VCLThruHostStackBidirNsock, self).tearDown()

    def test_vcl_thru_host_stack_bi_dir_nsock(self):
        """ run VCL thru host stack bi-directional (multiple sockets) test """

        self.timeout = self.client_bi_dir_nsock_timeout
        self.thru_host_stack_test("vcl_test_server", self.server_args,
                                  "vcl_test_client",
                                  self.client_bi_dir_nsock_test_args)


class LDPThruHostStackBidirNsock(VCLTestCase):
    """ LDP Thru Host Stack Bidir Nsock """

    def setUp(self):
        super(LDPThruHostStackBidirNsock, self).setUp()

        self.thru_host_stack_setup()
        if self.vppDebug:
            self.client_bi_dir_nsock_timeout = 20
            self.client_bi_dir_nsock_test_args = ["-N", "1000", "-B", "-X",
                                                  # OUCH! Host Stack Bug?
                                                  # "-I", "2",
                                                  self.loop0.local_ip4,
                                                  self.server_port]
        else:
            self.client_bi_dir_nsock_timeout = 20
            self.client_bi_dir_nsock_test_args = ["-N", "1000", "-B", "-X",
                                                  # OUCH! Host Stack Bug?
                                                  # "-I", "2",
                                                  self.loop0.local_ip4,
                                                  self.server_port]

    def tearDown(self):
        self.thru_host_stack_tear_down()
        super(LDPThruHostStackBidirNsock, self).tearDown()

    def test_ldp_thru_host_stack_bi_dir_nsock(self):
        """ run LDP thru host stack bi-directional (multiple sockets) test """

        self.timeout = self.client_bi_dir_nsock_timeout
        self.thru_host_stack_test("sock_test_server", self.server_args,
                                  "sock_test_client",
                                  self.client_bi_dir_nsock_test_args)


class LDPThruHostStackNsock(VCLTestCase):
    """ LDP Thru Host Stack Nsock """

    def setUp(self):
        super(LDPThruHostStackNsock, self).setUp()

        self.thru_host_stack_setup()
        if self.vppDebug:
            self.client_uni_dir_nsock_timeout = 20
            self.numSockets = "2"
        else:
            self.client_uni_dir_nsock_timeout = 20
            self.numSockets = "5"

        self.client_uni_dir_nsock_test_args = ["-N", "1000", "-U", "-X",
                                               "-I", self.numSockets,
                                               self.loop0.local_ip4,
                                               self.server_port]

    def tearDown(self):
        self.thru_host_stack_tear_down()
        super(LDPThruHostStackNsock, self).tearDown()

    def test_ldp_thru_host_stack_uni_dir_nsock(self):
        """ run LDP thru host stack uni-directional (multiple sockets) test """

        self.timeout = self.client_uni_dir_nsock_timeout
        self.thru_host_stack_test("sock_test_server", self.server_args,
                                  "sock_test_client",
                                  self.client_uni_dir_nsock_test_args)


class VCLThruHostStackNsock(VCLTestCase):
    """ VCL Thru Host Stack Nsock """

    def setUp(self):
        super(VCLThruHostStackNsock, self).setUp()

        self.thru_host_stack_setup()
        if self.vppDebug:
            self.client_uni_dir_nsock_timeout = 20
            self.numSockets = "2"
        else:
            self.client_uni_dir_nsock_timeout = 20
            self.numSockets = "5"

        self.client_uni_dir_nsock_test_args = ["-N", "1000", "-U", "-X",
                                               "-I", self.numSockets,
                                               self.loop0.local_ip4,
                                               self.server_port]

    def tearDown(self):
        self.thru_host_stack_tear_down()
        super(VCLThruHostStackNsock, self).tearDown()

    def test_vcl_thru_host_stack_uni_dir_nsock(self):
        """ run VCL thru host stack uni-directional (multiple sockets) test """

        self.timeout = self.client_uni_dir_nsock_timeout
        self.thru_host_stack_test("vcl_test_server", self.server_args,
                                  "vcl_test_client",
                                  self.client_uni_dir_nsock_test_args)


class LDPThruHostStackIperf(VCLTestCase):
    """ LDP Thru Host Stack Iperf  """

    def setUp(self):
        super(LDPThruHostStackIperf, self).setUp()

        self.thru_host_stack_setup()
        self.client_iperf3_timeout = 20
        self.client_iperf3_args = ["-V4d", "-t 2", "-c", self.loop0.local_ip4]
        self.server_iperf3_args = ["-V4d", "-s"]

    def tearDown(self):
        self.thru_host_stack_tear_down()
        super(LDPThruHostStackIperf, self).tearDown()

    def test_ldp_thru_host_stack_iperf3(self):
        """ run LDP thru host stack iperf3 test """

        try:
            subprocess.check_output(['iperf3', '-v'])
        except subprocess.CalledProcessError:
            self.logger.error("WARNING: 'iperf3' is not installed,")
            self.logger.error(
                "         'test_ldp_thru_host_stack_iperf3' not run!")
            return

        self.timeout = self.client_iperf3_timeout
        self.thru_host_stack_test("iperf3", self.server_iperf3_args,
                                  "iperf3", self.client_iperf3_args)


class LDPIpv6CutThruTestCase(VCLTestCase):
    """ LDP IPv6 Cut Thru Tests """

    def setUp(self):
        super(LDPIpv6CutThruTestCase, self).setUp()

        self.cut_thru_setup()
        self.client_iperf3_timeout = 20
        self.client_uni_dir_nsock_timeout = 20
        self.client_bi_dir_nsock_timeout = 20
        self.client_ipv6_echo_test_args = ["-6", "-E", self.echo_phrase, "-X",
                                           self.server_ipv6_addr,
                                           self.server_port]
        self.client_ipv6_iperf3_args = ["-V6d", "-t 2", "-c",
                                        self.server_ipv6_addr]
        self.server_ipv6_iperf3_args = ["-V6d", "-s"]
        self.client_ipv6_uni_dir_nsock_test_args = ["-N", "1000", "-U", "-X",
                                                    "-6",
                                                    "-I", "2",
                                                    self.server_ipv6_addr,
                                                    self.server_port]
        self.client_ipv6_bi_dir_nsock_test_args = ["-N", "1000", "-B", "-X",
                                                   "-6",
                                                   "-I", "2",
                                                   self.server_ipv6_addr,
                                                   self.server_port]

    def tearDown(self):
        self.cut_thru_tear_down()

        super(LDPIpv6CutThruTestCase, self).tearDown()

    def test_ldp_ipv6_cut_thru_echo(self):
        """ run LDP IPv6 cut thru echo test """

        self.cut_thru_test("sock_test_server",
                           self.server_ipv6_args,
                           "sock_test_client",
                           self.client_ipv6_echo_test_args)

    @unittest.skipUnless(running_extended_tests, "part of extended tests")
    def test_ldp_ipv6_cut_thru_iperf3(self):
        """ run LDP IPv6 cut thru iperf3 test """

        try:
            subprocess.check_output(['iperf3', '-v'])
        except:
            self.logger.error("WARNING: 'iperf3' is not installed,")
            self.logger.error(
                "         'test_ldp_ipv6_cut_thru_iperf3' not run!")
            return

        self.timeout = self.client_iperf3_timeout
        self.cut_thru_test("iperf3", self.server_ipv6_iperf3_args,
                           "iperf3", self.client_ipv6_iperf3_args)

    @unittest.skipUnless(running_extended_tests, "part of extended tests")
    def test_ldp_ipv6_cut_thru_uni_dir_nsock(self):
        """ run LDP IPv6 cut thru uni-directional (multiple sockets) test """

        self.timeout = self.client_uni_dir_nsock_timeout
        self.cut_thru_test("sock_test_server", self.server_ipv6_args,
                           "sock_test_client",
                           self.client_ipv6_uni_dir_nsock_test_args)

    @unittest.skipUnless(running_extended_tests, "part of extended tests")
    def test_ldp_ipv6_cut_thru_bi_dir_nsock(self):
        """ run LDP IPv6 cut thru bi-directional (multiple sockets) test """

        self.timeout = self.client_bi_dir_nsock_timeout
        self.cut_thru_test("sock_test_server", self.server_ipv6_args,
                           "sock_test_client",
                           self.client_ipv6_bi_dir_nsock_test_args)


class VCLIpv6CutThruTestCase(VCLTestCase):
    """ VCL IPv6 Cut Thru Tests """

    def setUp(self):
        super(VCLIpv6CutThruTestCase, self).setUp()

        self.cut_thru_setup()
        self.client_uni_dir_nsock_timeout = 20
        self.client_bi_dir_nsock_timeout = 20
        self.client_ipv6_echo_test_args = ["-6", "-E", self.echo_phrase, "-X",
                                           self.server_ipv6_addr,
                                           self.server_port]
        self.client_ipv6_uni_dir_nsock_test_args = ["-N", "1000", "-U", "-X",
                                                    "-6",
                                                    "-I", "2",
                                                    self.server_ipv6_addr,
                                                    self.server_port]
        self.client_ipv6_bi_dir_nsock_test_args = ["-N", "1000", "-B", "-X",
                                                   "-6",
                                                   "-I", "2",
                                                   self.server_ipv6_addr,
                                                   self.server_port]

    def tearDown(self):
        self.cut_thru_tear_down()

        super(VCLIpv6CutThruTestCase, self).tearDown()

    def test_vcl_ipv6_cut_thru_echo(self):
        """ run VCL IPv6 cut thru echo test """

        self.cut_thru_test("vcl_test_server",
                           self.server_ipv6_args,
                           "vcl_test_client",
                           self.client_ipv6_echo_test_args)

    @unittest.skipUnless(running_extended_tests, "part of extended tests")
    def test_vcl_ipv6_cut_thru_uni_dir_nsock(self):
        """ run VCL IPv6 cut thru uni-directional (multiple sockets) test """

        self.timeout = self.client_uni_dir_nsock_timeout
        self.cut_thru_test("vcl_test_server", self.server_ipv6_args,
                           "vcl_test_client",
                           self.client_ipv6_uni_dir_nsock_test_args)

    @unittest.skipUnless(running_extended_tests, "part of extended tests")
    def test_vcl_ipv6_cut_thru_bi_dir_nsock(self):
        """ run VCL IPv6 cut thru bi-directional (multiple sockets) test """

        self.timeout = self.client_bi_dir_nsock_timeout
        self.cut_thru_test("vcl_test_server", self.server_ipv6_args,
                           "vcl_test_client",
                           self.client_ipv6_bi_dir_nsock_test_args)


class VCLIpv6ThruHostStackEcho(VCLTestCase):
    """ VCL IPv6 Thru Host Stack Echo """

    def setUp(self):
        super(VCLIpv6ThruHostStackEcho, self).setUp()

        self.thru_host_stack_ipv6_setup()
        self.client_ipv6_echo_test_args = ["-6", "-E", self.echo_phrase, "-X",
                                           self.loop0.local_ip6,
                                           self.server_port]

    def tearDown(self):
        self.thru_host_stack_ipv6_tear_down()
        super(VCLIpv6ThruHostStackEcho, self).tearDown()

    def test_vcl_ipv6_thru_host_stack_echo(self):
        """ run VCL IPv6 thru host stack echo test """

        self.thru_host_stack_test("vcl_test_server",
                                  self.server_ipv6_args,
                                  "vcl_test_client",
                                  self.client_ipv6_echo_test_args)


if __name__ == '__main__':
    unittest.main(testRunner=VppTestRunner)